Fix check for easyrtcsid
Removed debug console.log lines
fix - Application name checking in validator
New - Message validation during authentication now tries to refer to application level options.
new - appObj.isConnected method for determining if a connection with a specific easyrtcid exists
change - Now using async.waterfall in isValidIncomingMessage().
change - In onEasyrtcAuth it is now checking if user has previously connected. If so, they are disconnected.